At some point there was also a car company that only sold a single electrical car model, it was pretty expensive and they didn't make that many cars per year, which is not what you would normally call "scalable."
Back to the original goalposts, as far as I know, Waymo is the only company that at this point, does offer a commercial service that's fully driverless. As you point out, they don't cover all of Earth, but neither do any of their competitors. Even Uber and Lyft, with human drivers, don't support all pick up and drop off locations, they only work in certain service areas.
Yeah, that whole car's tech didn't rely on expensive highdef maps.
> fully driverless
Don't they have safety drivers that closely monitor through wireless connection and often take over? While it might look driverless, it is not technically. This is also another reason why it doesn't scale.
Which works in one small limited area of the earth because of high-def maps, which is not what you would normally call "scalable".